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Commit 6086793a authored by Naseer Ahmed's avatar Naseer Ahmed
Browse files

msm: mdss: Fix potential NULL pointer dereference in mdss smmu driver 



FB driver will call this function even if there is no MDP.
mdss_mdp_get_mdata will return NULL in that scenario and needs to be
checked.

Change-Id: Icebed1bc9b4da214fec2ca924590403d1656fa5d
Signed-off-by: default avatarNaseer Ahmed <naseer@codeaurora.org>
parent d3e41c96

drivers/video/msm/mdss/mdss_smmu.h

+1 −1
Original line number Diff line number Diff line
@@ -216,7 +216,7 @@ static inline void mdss_smmu_dma_free_coherent(struct device *dev, size_t size, 
		void *cpu_addr, dma_addr_t phys, dma_addr_t iova, int domain)

{

	struct mdss_data_type *mdata = mdss_mdp_get_mdata();

	if (mdata->smmu_ops.smmu_dma_free_coherent)

	if (mdata && mdata->smmu_ops.smmu_dma_free_coherent)

		mdata->smmu_ops.smmu_dma_free_coherent(dev, size, cpu_addr,

			phys, iova, domain);

}